service NISSAN LEAF 2016 1.G First Responders Guide

NOTE:
Components with white number in black background are high voltage components.No. Component
LocationDescription
Charge

port Under hood Connecting port for EVSE (Electric Vehicle
Supply Equipment) . Two ports are available:
Normal charge and quick charge (if so equipped) .
High voltage cables Under hood and
undercarriage Orange-colored power cables carry high voltage
current between each of the high voltage
components.
Traction Motor Under hood Converts three-phase AC power to drive power
(torque) which propels the vehicle.
Inverter Under hood Converts the DC power stored in the high voltage
battery to three-phase AC power and controls
motor torque (revolution) by regulating the motor
current.
Electric air
conditioner
compressor Under hood
Air conditioner compressor
Power Delivery
Module (PDM)
• On Board Charger
• DC/DC Converter
• High voltage junction box (J/B) Under hood
The PDM includes an On Board Charger, DC/DC
converter and high voltage junction box (J/B) .
The On Board Charger converts single-phase AC
power from a home power outlet to DC power
and increases the voltage in order to charge the
high voltage battery.
The DC/DC converter reduces the voltage of the
high voltage battery to provide power to the
12-volt battery in order to operate the vehicle’s
electric components (headlights, audio system,
etc.) .
The J/B provides electric power from the high
voltage battery to all high voltage parts of the
vehicle.
12-volt Battery Under hood A lead-acid battery that supplies power to the low
voltage devices.
Cabin heater Interior (This unit is
installed behind the
instrument panel) This is the electric heat source for the cabin
heater. It heats the interior of the vehicle.
High voltage battery Undercarriage Stores and outputs DC power (Maximum voltage
398.4V) needed to propel the vehicle.
High voltage battery
service disconnect Rear seat floor Isolates the battery from the rest of the high
voltage electrical system.
Brake power supply
backup unit Cargo area (This unit
is installed behind a
trim panel to prevent
access) Power supply backup unit for the brake system.
It supplies power to the brake system if a
malfunction occurs in the 12-volt battery.
FRG–9

2-3 High Voltage Circuit Shut-Off System
The
high voltage can be shut off by the following methods: Service plug
Positioned in the center area of the high voltage battery, this shuts off output
high
voltage when manually removed.
System main relay (located
in high voltage battery) Controlled by the power switch, this relay, which is controlled by the 12-volt
system, shuts off the high voltage from the high voltage battery.
Emergency shut-off
system In the case of a collision (front and side collisions in which the air bags are
deployed, certain rear collisions) or certain system malfunctions this system
is designed to shut off the high voltage from the high voltage battery.
Charging connector Some of the high voltage components are activated during charging. Remove the charging connector to deactivate these components.
2-4 Preventing Electrical Shock 1. If it is necessary to touch any of the high voltage harnesses or components, you mustalways wear appropriate Personal Protective Equipment (PPE) (refer to 3-1 Preparation Items
(FRG–13) ) and shut off the high voltage system by referring to 3-3.1 High Voltage System
Shut-Down

Procedures (FRG–16) .
2.

To avoid the risk of electrocution, NEVER touch the inside of the high voltage battery unless
appropriate PPE is worn even after shutting off the high voltage system. The high voltage battery
maintains charge even though the high voltage system is shut down.
3. Cover any damaged high voltage components with insulated tape.
2-5 Emergency Medical Equipment
The high voltage system should not interfere with emergency medical equipment which must be used in or
near the vehicle at an accident scene.
FRG–11

3-1 Preparation Items
Preparation Items
Specification Purpose
Personal Protective
Equipment (PPE):
Insulated gloves Up to 1,000V
For
protection from high voltage
electrical shock
Insulated shoes –
Safety

shield –
Leather

gloves Must be able to fasten tight
around

the wrist (worn over
insulated gloves) . To protect insulated gloves
Wrenches Size: 10mm
T
o remove the service plug access
cover bolts.
To remove the 12-volt battery terminal
bolt.
Solvent resistant protection
gloves –
To utilize in the event of a high voltage
battery electrolytic solution leak.
Solvent resistant protection
shoes –
Absorbent pad The same pad used for internal
combustion engine fluids can be
used. To absorb any high voltage battery
electrolytic solution leakage.
Standard fire fighting
equipment Standard fire fighting equipment
Depending on type of fire (vehicle
or battery) use standard fire
fighting equipment (water or
extinguisher) . To extinguish a fire.
Insulated tape Insulating To cover any damaged harnesses to
protect from and prevent electrical
shock. Tape should cover all bare or
damaged wire.
FRG–13

Indications the High Voltage System is ON
1. If the READY indicator is ON, the high voltage system is active.
2.

The high voltage system is active if any charge indicator
is ON (blue LEDs on top of the instrument panel) .
Before disconnecting the 12-volt battery terminal, if necessary, lower the windows, unlock the doors, and
open the rear hatch as required. Once 12-volt battery is disconnected, power controls will not operate.
Powering Down the High Voltage System
The high voltage system can be shut down with any 1 of the following procedures: • Turn OFF the power switch anddisconnect the 12-volt battery. Refer to
Primary Procedure (FRG–20) .
•

Remove the fuses for the high voltage control system and disconnect the 12-volt battery.
Refer to Alternate Procedure 1 (Remove Fuses) (FRG–22).
•

Remove the service plug and disconnect the 12-volt battery. Refer to Alternate Procedure 2
(Remove

Service Plug) (FRG–24) .
Primary

Procedure
1. Check the READY indicator status. If it is ON, the high voltage system is active.
2.

Place the selector lever in the Park (P) position.
3. Press the power switch once to turn OFF the high voltage system. Then verify whether the READY indicator is OFF and continue to the next steps to
open

the hood for 12-volt battery negative cable access.
If the READY indicator does not turn off, refer to
Alternate Procedure 1 (Remove Fuses) (FRG–22)
4. If possible, keep the Nissan Intelligent Key® at least 5
meters (16 feet) away from the vehicle. AAYIA0155ZZ
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HOLD
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FRG–20

6. Disconnect the negative (-) 12-volt battery cable (1) .
Insulate the negative (-) battery cable terminal with
insulated tape.
NOTE: : Arrow in illustration depicts vehicle front
direction.
7. Wait

at least ten (10) minutes for complete discharge of the high voltage capacitor after
the fuses are pulled.
8. Perform the first response action. To avoid unintended reinstallation and risk of electrical shock and severe personal injury
or

death, the rescuer should carry the fuses on his/her person and cover the fuse box with
insulated tape.
Alternate Procedure 2 (Remove Service Plug) • Do not remove the service plug without always wearing appropriate Personal
Protective
Equipment (PPE) to help protect the responder from serious injury or death
by electrical shock.
• Immediately cover the service plug socket with insulated tape. The high voltage
battery
retains high voltage power even when the service plug is removed. To avoid
electric shock, NEVER touch the terminals inside the socket.
To avoid unintended reinstallation and risk of electrical shock and severe personal injury or
death, the rescuer should carry the service plug on his/her person while work is in progress.
1. Insert a suitable tool (1) under the RH rear corner of the access trim cover located on the floor behind the center
console. Pry up (2) and remove.
NOTE: : Arrow in illustration depicts vehicle front
direction. 1
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FRG–24

2. Remove the 10 mm access cover bolts (1) and remove
the cover (2) .
NOTE: : Arrow in illustration depicts vehicle front
direction.
3.

Remove the service plug using the following steps: (1) pull up and release the green lever, (2)
press the locking tab to release and rotate fully upward, (3) pull the service plug completely out of
its socket.
4. Wait at least (10) minutes for complete discharge of the high voltage capacitor after the
service plug has been removed.
5. Open the hood. 1
2
AAYIA0158ZZ
1
2
3
Pull up Rotate
Push to
release Pull up
and
remove
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FRG–25

6. Disconnect the negative (-) 12-volt battery cable (1) .
Insulate the negative (-) battery cable terminal with
insulated tape.
NOTE: : Arrow in illustration depicts vehicle front
direction.
7.

Perform the first response action.
3-3.2 Water Submersion Damage level of submerged vehicle may not be apparent. Handling a submerged
vehicle
without appropriate Personal Protective Equipment (PPE) will result in serious
injury or death from electrical shock. • The power switch of the submerged vehicle must be turned OFF first, if possible.
Then
the vehicle must be completely out of the water and drained to avoid electrical
shock.
• Always wear appropriate Personal Protective Equipment (PPE) and remove/drain
water
before removing the service plug when working on a vehicle after a fire or
submersion to avoid electrical shock.
• If the vehicle is in the water, to avoid electrical shock NEVER touch the high
voltage
components, harnesses or service plug. PPE must always be worn when
touching or working on high voltage components.
3-3.3 Vehicle Fire • Always utilize full Personal Protective Equipment (PPE) and self-contained breathing
apparatus
during fire fighting operations. Smoke from a LEAF vehicle fire is similar to
smoke from a conventional vehicle fire.
• In the case of extinguishing a fire with water, large amounts of water from a fire hydrant (if possible) must be used. DO NOT extinguish fire with a small amount of water. 1
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FRG–26